[PatFlemming]

I could really use some advice.

The northwest corner is by far the coldest spot of my garage foundation wall. In the winter, especially during very cold weather, frost builds up. Even in moderate temperatures, there the area is wet due to condensation.

All of my fouindation wall gets wet to the touch when the garage is humid and the outside temp is very cold, but only that corner get frost.

I park my vehicle in the insulated garage, so extra heat from the engine and ice/snow melt makes the garage very humid. I squigee as much water out as I can, but that doesnt really do much. I've considered adding an exhaust fan but that's for the future maybe because I don't want to go through the brick exterior.

I would welcome any advice on how to address this issue... I want to avoid concrete deterioration and spalling in the future.

Would spray foaming this corner make sense?

 

[Bud9051]

Simple problem, difficult solution. Even with a layer of insulation, that garage is unheated except for the heat from the vehicles. The bad news is, any garage air making its way into those walls, any tiny cracks or around outlets, is depositing the same moisture in there with your insulation.

Rigid foam could be cut and fit along the exposed concrete byt it would be a patch, not a solution.

Bud

 

[Nealtw]

If you are sure that it is just condensation and you want to protect the concrete just seal it so water can't get in the concrete from the garage side.

 

[PatFlemming]

If you are sure that it is just condensation and you want to protect the concrete just seal it so water can't get in the concrete from the garage side.

such a simple solution that I had never thought of. thanks!

 

[Bud9051]

Sealing the concrete may prevent the moisture from soaking into the foundation, but it won't prevent the condensation and frost.

Your problem is excess moisture and cold surfaces. And as I mentioned, that same frost accumulation may be happening inside those walls.

Bud

 

[SPS-1]

1) Where are you located ?

2) what is on the other side of that wall ?

I have never seen frost on the inside of a garage wall.